CN104263927B - Membrane pressure filter is utilized to be separated the method for slag in ore pulp - Google Patents
Membrane pressure filter is utilized to be separated the method for slag in ore pulp Download PDFInfo
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- CN104263927B CN104263927B CN201410551030.1A CN201410551030A CN104263927B CN 104263927 B CN104263927 B CN 104263927B CN 201410551030 A CN201410551030 A CN 201410551030A CN 104263927 B CN104263927 B CN 104263927B
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- slag
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- ore pulp
- pressure filter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a kind of method utilizing membrane pressure filter to be separated slag in ore pulp, comprise (1) pulp conveying of slag to be separated is entered membrane pressure filter to carry out press filtration, when 80%-90% is filled up by slag in space between filter press plate, stop transfer ore pulp; (2) slurries that clean slag and water are formed are conveyed into pressure filter, until the space between filter press plate is filled up completely by slag, then carry out hydraulic pressure expansion deckle board inner septum, realize extruding of expanding, content liquid in filter cake is reduced, realizes the separation of slag in ore pulp.The present invention does not have large change to common pressure filter, the convenient recycling realizing valuable constituent in slag filter cake, and the rate of recovery reaches more than 90%, can significantly energy-saving and emission-reduction, improves yield; If water to be changed into sulfuric acid, hydrochloric acid or organic solvent, also can other valuable constituent in convenient recovery filter cake.
Description
Technical field
The present invention relates to a kind of method utilizing membrane pressure filter to be separated slag in ore pulp.
Background technology
Hydrometallurgy is the processing and utilization mode of carrying out lixiviate after ore being broken into powder, and the ore pulp after lixiviate generally adopts the method separation slag wherein of press filtration, and thus the very important means of solid-liquid separation are carried out in press filtration in hydrometallurgy process.In hydrometallurgical processes, be all generally relatively large pressure filter hydraulic compression, carry out hydraulic pressure expansion deckle board inner septum after having filtered, realize extruding of expanding, content liquid in filter residue is reduced as far as possible, reduce the loss of solubility valuable constituent.
But the liquid still containing about 30% in the ore pulp filter residue of overexpansion extruding, the water-soluble valuable constituent (metal ion) that residual liquid contains not only can make the yield of hydrometallurgy reduce, if discharge also can serious environment pollution.Owing to needing the ore pulp amount of carrying out press filtration very large in hydrometallurgical processes, thus reclaim the valuable constituent composition (mainly water miscible metal ion) of residual liquid in ore pulp filter residue, just can significantly energy-saving and emission-reduction.
But existing filter-pressing method does not all have to solve this technical problem more easily, although filter residue blows more dry with air by person trained in a certain field after press filtration completes, but the liquid of more than 20% is still remained with the filter cake after air blow drying, therefore, existing filter-pressing method can not meet people and be separated in ore pulp slag to the demand of energy-saving and emission-reduction, need the feature for ore pulp, improve.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art exactly, for the feature of ore pulp, a kind of membrane pressure filter that utilizes that conveniently can reclaim the valuable constituent (mainly water miscible metal ion) of residual liquid in ore pulp filter cake is provided to be separated the method for slag in ore pulp.The slurries that the present invention adopts clean slag and water to be formed and clear water carry out displacement to slag filter cake and penetrate, and valuable constituent in filter cake (mainly metal ion) are almost all washed out and reclaim, and improve yield and significantly energy-saving and emission-reduction.
For overcoming the deficiencies in the prior art, technical scheme of the present invention comprises following step:
(1) pulp conveying of slag to be separated is entered membrane pressure filter and carry out press filtration, when 80%-90% is filled up by slag in the space between filter press plate, stop transfer ore pulp;
(2) slurries that clean slag and water are formed are conveyed into pressure filter, until the space between filter press plate is filled up completely by slag, then carry out hydraulic pressure expansion deckle board inner septum, realize extruding of expanding, content liquid in filter cake is reduced, realizes the separation of slag in ore pulp.
Core of the present invention is: time 80%-90% is filled up by slag in the space between filter press plate, the slurries that clean slag and water are formed are conveyed into pressure filter, until the space between filter press plate is filled up completely by slag, then carry out hydraulic pressure expansion chase inner septum, realize extruding of expanding.
The advantage done like this is: the liquid stream runner that the slurries now carrying clean slag and water to be formed can utilize press filtration to be formed realizes replacing and washing to the water-soluble valuable constituent (mainly metal ion) in filter cake, the crystallization slag simultaneously allocated into fully can fill up pressure filter, avoid there is space in filter press plate, the extruding causing the barrier film hydraulic expansion in later stage to cause barrier film deckle board and expansion damage.
If to wash with water again after being filled up completely by slag in the space between filter press plate or slurries that clean slag and water are formed are washed, liquid stream runner then in filter cake can be closed because slag fills up completely, cannot realize displacement and the washing of water-soluble valuable constituent (mainly metal ion).
Therefore, it is very exquisite operation that the slurry wash filter cake that the clean slag of time standby of 80%-90% and water formed is filled up by slag in the space between filter press plate.
Compared with prior art, beneficial effect of the present invention is:
Do not have large change to common pressure filter, the convenient recycling realizing valuable constituent (mainly metal ion) in slag filter cake, the rate of recovery reaches more than 90%, can significantly energy-saving and emission-reduction, improves yield; If water to be changed into sulfuric acid, hydrochloric acid or organic solvent, also can other valuable constituent in convenient recovery filter cake, have a extensive future.
Embodiment
Below the method utilizing membrane pressure filter to be separated slag in ore pulp is described in detail
Embodiment 1:
(1) pulp conveying of slag to be separated is entered membrane pressure filter and carry out press filtration, when the space between filter press plate is filled up 81% by slag, stop transfer ore pulp;
(2) slurries that clean slag and water are formed are conveyed into pressure filter, until the space between filter press plate is filled up completely by slag, then carry out hydraulic pressure expansion deckle board inner septum, realize extruding of expanding, content liquid in filter cake is reduced, realizes the separation of slag in ore pulp.
Embodiment 2:
(1) pulp conveying of slag to be separated is entered membrane pressure filter and carry out press filtration, when the space between filter press plate is filled up 85% by slag, stop transfer ore pulp;
(2) slurries that clean slag and water are formed are conveyed into pressure filter, until the space between filter press plate is filled up completely by slag, then carry out hydraulic pressure expansion deckle board inner septum, realize extruding of expanding, content liquid in filter cake is reduced, realizes the separation of slag in ore pulp.
Embodiment 3:
(1) pulp conveying of slag to be separated is entered membrane pressure filter and carry out press filtration, when the space between filter press plate is filled up 89.3% by slag, stop transfer ore pulp;
(2) slurries that clean slag and water are formed are conveyed into pressure filter, until the space between filter press plate is filled up completely by slag, then carry out hydraulic pressure expansion deckle board inner septum, realize extruding of expanding, content liquid in filter cake is reduced, realizes the separation of slag in ore pulp.
Above-mentioned just preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Any those of ordinary skill in the art, when not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or being revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solution of the present invention protection.
Claims (1)
1. utilize membrane pressure filter to be separated a method for slag in ore pulp, it is characterized in that comprising following step:
(1) pulp conveying of slag to be separated is entered membrane pressure filter and carry out press filtration, when 80%-90% is filled up by slag in the space between filter press plate, stop transfer ore pulp;
(2) slurries that clean slag and water are formed are conveyed into pressure filter, until the space between filter press plate is filled up completely by slag, then carry out hydraulic pressure expansion deckle board inner septum, realize extruding of expanding, content liquid in filter cake is reduced, realizes the separation of slag in ore pulp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551030.1A CN104263927B (en) | 2014-10-17 | 2014-10-17 | Membrane pressure filter is utilized to be separated the method for slag in ore pulp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551030.1A CN104263927B (en) | 2014-10-17 | 2014-10-17 | Membrane pressure filter is utilized to be separated the method for slag in ore pulp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104263927A CN104263927A (en) | 2015-01-07 |
| CN104263927B true CN104263927B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410551030.1A Expired - Fee Related CN104263927B (en) | 2014-10-17 | 2014-10-17 | Membrane pressure filter is utilized to be separated the method for slag in ore pulp |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195860A (en) * | 2007-12-20 | 2008-06-11 | 何凯东 | Method and device for washing wet-process zinc metallurgy output slag |
| CN103316760A (en) * | 2013-06-09 | 2013-09-25 | 云南文山铝业有限公司 | Method for processing monohydrallite ore washing gangue |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110266217A1 (en) * | 2010-04-28 | 2011-11-03 | Baker Hughes Incorporated | Method for cleaning filter separation systems |
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2014
- 2014-10-17 CN CN201410551030.1A patent/CN104263927B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195860A (en) * | 2007-12-20 | 2008-06-11 | 何凯东 | Method and device for washing wet-process zinc metallurgy output slag |
| CN103316760A (en) * | 2013-06-09 | 2013-09-25 | 云南文山铝业有限公司 | Method for processing monohydrallite ore washing gangue |
Non-Patent Citations (1)
| Title |
|---|
| 电解金属锰渣滤饼循环逆流洗涤试验研究;刘闺华等;《中国锰业》;20100531;第28卷(第2期);37 * |
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| CN104263927A (en) | 2015-01-07 |
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| C14 | Grant of patent or utility model | ||
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| CB03 | Change of inventor or designer information |
Inventor after: Zhang Yaoming Inventor after: Zhang Qianxin Inventor before: Yin Yongzhong |
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| TR01 | Transfer of patent right |
Effective date of registration: 20171207 Address after: 364000 Longyan City, Fujian province Wuping County in the town of Yue Yang Village Patentee after: WUPING ZIJIN MINING Co.,Ltd. Address before: 416000 Hunan, Xiangxi Tujia and Miao Autonomous Prefecture, Jishou City People's road, No. 120 Patentee before: Jishou University |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20211017 |
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| CF01 | Termination of patent right due to non-payment of annual fee |